JPH04124767U - Printed circuit board terminal - Google Patents

Abstract

(57) [Summary] [Purpose] Even if the dimensional tolerance of the hole in the printed circuit board is large,
To provide a printed circuit board terminal in which an insertion part can be easily inserted into the hole and can be securely fixed after insertion. [Structure] A slit 24 is provided in the vertical direction from the insertion portion 6 of the terminal 22 to the main body portion 4, and a retaining portion 26 is provided that extends from the insertion portion 6 to the left and right.
The upper side 28 of 6 is tapered diagonally downward.

Description

[Detailed explanation of the idea]

0001

[Industrial application field]

This idea can be inserted into printed circuit boards that make up electrical equipment such as high-voltage power supplies. Terminals for printed circuit boards used to connect the same printed circuit board to other devices. related.

0002

[Conventional technology]

Conventional examples of this type of printed circuit board terminal are shown in FIGS. 3 and 4.

0003 These terminals 2 and 12 are also called tab terminals, but both The main body part 4 into which the mating (female) terminal is inserted, and the printed part connected to it. The insertion part 6 is inserted into the hole of the board, and the insertion part 6 extends left and right from the base of the insertion part 6. It has stop portions 8, 8, and has a plate shape as a whole. For example, the insertion section 6 is shown in FIG. As shown in FIG. solder to the wiring pattern 18 provided on the back side of the board 14 (20 refers to the solder). be shown)

0004 Among these, in the case of the terminal 2 shown in FIG. (see Figure 5, etc.), and press-fit this part into the hole of the printed circuit board to secure it. I'm trying to increase the intensity.

[0005] On the other hand, the terminal 12 in FIG. We are trying to increase the strength of the fixation.

[0006]

[Problem that the idea aims to solve]

In the case of any of the above terminals 2 and 12, press the insertion part 6 into the hole of the printed circuit board. Therefore, it is difficult to set the dimensional tolerance of the hole in the printed circuit board, for example, if the tolerance is 0. ~+0.1mm is almost impossible, and either a large pressing force or backlash will occur. Ru.

[0007] If the pressing force is large, for example, as shown in FIG. The hole 16 could not be pressed into the hole 16 sufficiently, resulting in a gap between the stopper 8 and the surface of the printed circuit board 14. In the worst case, due to the force when inserting the mating terminal into the main body 4, , there is a problem that the wiring pattern 18 peels off. In addition, due to the large pressing force, There is also the problem that the process is difficult and takes a long time.

[0008] On the other hand, in the case of looseness, as shown in Figure 6, for example, the terminal 2 may be tilted or disconnected. In addition, there is the problem that the wiring pattern 18 peels off as in the case of large press force. Ru.

[0009] Therefore, this idea has been developed to ensure that the insertion part remains the same even if the dimensional tolerance of the hole in the printed circuit board is large. Printing that can be easily inserted into the hole and securely fixed after insertion The main purpose is to provide terminals for circuit boards.

0010

[Means to solve the problem]

In order to achieve the above purpose, the printed circuit board terminal of this invention is as described above. A slit is provided in the vertical direction from the insertion section to the main body, and a slit is provided from the insertion section to the left and right. A protruding retaining part is provided, and the upper side of this retaining part is tapered diagonally downward. It is characterized by having a shape.

[0011]

[Effect]

According to the above configuration, the slit provides the insertion portion with springiness that allows it to flex in the width direction. The insertion part can be easily inserted into the corresponding hole even if the dimensional tolerance of the printed circuit board is large. can do. Also, after insertion, the insertion part will hold the printed circuit board due to its spring properties. It tries to expand inside the hole, and the force causes the retaining part to stick tightly to the printed circuit board. The fixation is ensured.

0012

【Example】

FIG. 1 is a front view showing a printed circuit board terminal according to an embodiment of this invention. Parts that are the same as or correspond to those in the conventional example shown in FIGS. 3 and 4 are given the same reference numerals, and are described below. In this section, differences from the conventional example will be mainly explained.

[0013] The terminal 22 of this embodiment extends from the insertion portion 6 to the main body portion 4 as described above. A slit 24 is provided in the vertical direction. Also, from the distal end of the insertion section 6 to the middle part, A retaining portion 26 that protrudes from the insertion portion 6 to the left and right and is pointed downward, 26 are provided. Then, attach the upper side 28 of each retaining portion 26 to a diagonally downward tab. It is shaped like a paper.

[0014] FIG. 2 shows a state in which these terminals 22 are inserted into the printed circuit board 14 as described above. Shown below. That is, in this terminal 22, the insertion portion 6 is inserted through the slit 24. Because of the springiness of bending in the width direction, the dimensional tolerance of the hole 16 in the printed circuit board 14 is large. Even if the insertion part 6 can be entered. As a result, the workability of inserting the terminal is improved and the work time is shortened. can be reduced.

[0015] After insertion, the insertion portion 6 is held in the hole 16 of the printed circuit board 14 due to its spring properties. It tries to spread outward in the width direction (in the direction of arrow A in Figure 2), and the force prevents it from coming off. The retaining portion 26 is pressed against the printed circuit board 14 and comes into close contact with the printed circuit board 14. Looking more closely, we can see that The upper side 28 of the stopper part 26 is pressed diagonally against the corner of the hole 16 of the printed circuit board 14. This creates a force that presses the terminal 22 against the printed circuit board 14 side (Fig. 2) acts in the direction of arrow B, thereby making the terminal 22 more securely fixed. It will be done. As a result, even if the dimensional tolerance of the hole 16 in the printed circuit board 14 is large, the It is possible to prevent the terminal 22 from coming off, floating, tilting, etc., and furthermore, the printed circuit board 1 Peeling of the wiring pattern 18 of No. 4 can be prevented.

[0016] Further, as mentioned above, the dimensional tolerance of the hole 16 of the printed circuit board 14 may be large. This also has the effect of making printed circuit board design easier.

[0017] Note that the tip of the insertion portion 6 does not necessarily have to be sharp as in this embodiment. For example, it may be rounded as in the example shown in FIG.

[0018] Furthermore, the relationship between the widths of the main body portion 4 and the insertion portion 6 is not limited to that shown in this embodiment. For example, the two may be substantially equal as in the example shown in FIG. Also, How to connect other lead wires and the like to the main body portion 4 is also arbitrary.

[0019]

[Effect of the idea]

As described above, according to this invention, even if the dimensional tolerance of the hole in the printed circuit board is large, The insertion part can be easily inserted into the hole, so it can be easily inserted into the printed circuit board of the terminal. It is possible to improve the workability of insertion and shorten the work time. Also, the terminal The wiring pattern of the printed circuit board can be fixed securely after being inserted into the printed circuit board. It is possible to prevent peeling of the skin. Moreover, the dimensional tolerance of the holes in the printed circuit board is large. This makes printed circuit board design easier.

[Brief explanation of drawings]

FIG. 1 is a front view showing a printed circuit board terminal according to an embodiment of the invention.

FIG. 2 is a front view showing a state in which the terminal of FIG. 1 is inserted into a printed circuit board.

FIG. 3 is a front view showing an example of a conventional printed circuit board terminal.

FIG. 4 is a front view showing another example of a conventional printed circuit board terminal.

FIG. 5 is a side view showing an example of a state in which the terminal of FIG. 3 is inserted into a printed circuit board.

6 is a side view showing another example of a state in which the terminal of FIG. 3 is inserted into a printed circuit board. FIG.

[Explanation of symbols]

4 Main body 6 Insertion part 8 Stop part 14 Printed circuit board 16 holes 22 Example printed circuit board terminal 24 slit 26 Retainer part 28 Top side

Claims (1)

[Scope of utility model registration request] [Claim 1] A main body, an insertion part connected to the main body that is inserted into a hole in a printed circuit board, and a stop part extending left and right from the base of the insertion part, and the whole is plate-shaped. In the printed circuit board terminal, a slit is provided in the vertical direction from the insertion part to the main body part, a retaining part is provided extending from the insertion part to the left and right, and the upper side of the retaining part is tapered diagonally downward. A printed circuit board terminal characterized by: